Maybe don't drink coffee? Or replace coffee with some other caffeine source.

Or find a less bitter coffee. There are a lot more varieties of coffee that aren't mainstream that don't have the bitterness of mass produced stuff. I detest coffee/food snobbery but have found some lighter roasts that aren't as bitter.

Or try different brewing methods.

Try replacing the sugar with fat. Use cream or half and half.

For a latte, ask for it to be made "brevee" (brev-aye) which indicates half and half usage.

For coffee, I will do 50/50 half and half with coffee.

It is quite delicious.

First: you can unless there's some medical reason you can't. However, I highly doubt that.

Second: I'm sure you're smart & I'm going to presume you know how to use google.

Last: I'm not a nutritionist, so I can and won't recommend foods to eat.

1/3 sugar and 2/3 stevia or Splenda.

Artificial sweeteners (including stevia) have a tasteable "bite" to them which I don't like. Using a bit of sugar helps smooth out the bite while the bulk of the sweetness is provided by the sweetener.

Do you like beer? Do you remember how gross it was the first time you had it? Black coffee is much the same. I would recommend buying an aero press and a grinder and start making good coffee. Coffee sitting in a pot all day is horrible. Find the best coffee shop around you and try some French press. It takes a few weeks to get over the flavor of black coffee but I can’t imagine drinking coffee with sugar in it anymore.

Half stevia half sugar. You can use about 2g sugar per cup, which is 8 calories, and have it taste like you used 5-10g sugar. Once down to this level, unless you're having 10+ cups per day, there are far more important calorie sources to optimize for.

I used to be a light and sweet guy but just slowly tapered back on the sugar. I eventually switched to half and half and currently go no sugar with a bit of half and half. I seriously can’t stomach the sweetness of how I used to drink it.

Just use half the sugar you usually use and go from there. Your taste will adjust and then you can half it again. If you get as far as one molecule or less of sugar, STOP!

Try honey or even just a pinch of salt.

try a good light roast. surprisingly flavorful in itself. helped me.